Improvement in water-proof leather hose



1. PUNDERFORDQ Waterproof Leather Hose. I No. 23,781. Patented Apr.26,1859.

UNITED STATES PATENT OFFICE.

JAMES PUNDERFO RD, OF NEW HAVEN, CONNECTICUT.

IMPROVEMENT IN WATER-PROOF LEATHER HOSE.

Specification forming part of Letters Patent No. 23,781, dated April 26,1859.

. lowing is a full and exact description thereof,

reference being had to the accompanying drawing.

In carrying out my invention I spread over the inner surface of theleather forming the body of the hose a layer of gutta-percha,indiarubber, or other like water-proof material, the leather havingfirst been prepared for its reception by the aid of chemical agents, theeffect being to render the hose impervious to the water passing throughit, thereby preventing the ordinary leakage and waste through the poresof the leather and at the seams, and preventing the inner surface of theleather iron] the usual effects of mold and rot so deleterious to thehose as at present prepared and made.

To enable others skilled in the art to make and use my invention, I willproceed to describe it more particularly.

After theleather is tanned, curried, and out ready for the riveting, asin the manufacture of the ordinary leather hose now in common use, Iproceed by the use of the currying-knife to butt off a thin shaving fromthe entire surface of the grain or flesh, and then apply with a brush acoat of oxalic acid in the liquid state for the purpose of destroying orneutralizing the oily particles upon and near to the surface, which giveto the leather its tendency to resist gutta-percha, india-rubber, andlike materials, and prevent their proper adhesion to it. I next apply acoat of camphene and three coatings of gutta-percha or india-rubbercement, each successively as they dry. In order to form a lining to thehose which will protect thelayer of water-proof material thus applied,(as well as to add to its strength,) I in the same manner apply the samenumber of coatings of cement to an equal surface of cotton, cloth,leather, or other suitable material, and

when the coatings on the leather and its lining are sufficiently dry Iplace the lining on the prepared surface of the leather and unite thetwo together by the adhesion of the cement or by additional cement. Thehose material so madeis next to be rolled into shape, the lapped edgesbeing spread with the cement and the lining being extended between them.Next the lapped parts are to be riveted in the usual manner.

Havingthus described my invention, I would have it understood that I amaware that it :is not new to apply india-rubber to cloth, nor to cementcloth to leather by india-rubber cement; nor is it new to cover withindia-rubher the interior of a hose made of a woven material. ThereforeI do not claim such; but

What I do claim as my invention is The new or improved manufacture ofriveted leather hose made with a water-proof lining applied to its innersurface and extending between the joint or lapping where the rivets areinserted, substantially as described.

JAMES PUNDERFORD.

WVitnesses:

D. A. BISHOP, WM. B. J OHNSON.

